Lift-the-Flap Questions & Answers How Does it Work?

This excellent addition to the ever popular Questions & Answers series lifts the flap on all kinds of gadgets, systems and ideas. It answers questions such as How does electricity get into our walls? Why do waves go up and down? and Where does money come from? Perfect for every inquisitive child.

Aceasta completare excelenta la populara serie Intrebari si raspunsuri ridica clapeta pentru toate tipurile de gadgeturi, sisteme si idei. Raspunde la intrebari precum Cum intra electricitatea in peretii nostri?